Europa Clipper: A guide to NASA's new astrobiology mission
Apollo 11's Solar Wind Composition Experiment consisted of an aluminium foil sheet fixed to a pole facing the Sun. Studied by Swiss physicist Johannes Geiss, it was the only non-American experiment to be part of the mission and carried out on every moon landing
William Shatner reflects on his new film, 'Star Trek,' space travel and not attending Leonard Nimoy's funeral